HIGHLIGHTS-Tennis-Australian Open day eight

Highlights of Monday's eighth day of the Australian Open, the first Grand Slam tournament of the year (all times GMT): 0153 SVITOLINA INTO QUARTER-FINALS

Sixth seed Elina Svitolina overcame a mid-match blip to beat American Madison Keys 6-2 1-6 6-1 on Monday. The Ukrainian meets U.S. Open champion Naomi Osaka or Anastasija Sevastova in the quarter-finals. READ MORE

Federer knocked out by Greek wunderkind Tsitsipas Idol Federer becomes Tsitsipas's "rival"

Federer rues missed chances in Tsitsipas thriller Pavlyuchenkova beats Stephens in marathon contest to reach quarters

Barty reaches Melbourne quarters with win over Sharapova Unseeded American Collins hammers Kerber to reach quarters

Nadal blows away Berdych to reach quarter-finals Kvitova back in the Grand Slam big time

Unseeded Collins and Tiafoe make quarters on 'Super Sunday' Birthday boy Tiafoe topples Dimitrov to reach quarters

Australia's Barty living in the moment as nation's hopes surge Bautista Agut upsets Cilic to make Australian quarter-finals

Halep not intimidated by Serena ahead of Melbourne showdown FACTBOX-Simona Halep v Serena Williams [nL3N1ZK07M

Australian Open order of play on Monday (Reporting by Shrivathsa Sridhar in Bengaluru; editing by)